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Caterpillar CG170B-20 vs MTU 20V4000 GS

The Caterpillar CG170B-20 and MTU 20V4000 GS are both natural gas generator engines in a similar power class. The MTU 20V4000 GS is the higher-output unit (3,169 kVA vs 2,875 kVA). Displacement is 88.5 L versus 95.3 L. The table below compares their full specifications side by side.

SpecificationCaterpillar CG170B-20MTU 20V4000 GS
Headline rating2,875 kVA3,169 kVA
Standby (50 Hz)——
Prime (50 Hz)2,300 kWe2,535 kWe
Standby (60 Hz)——
Prime (60 Hz)2,300 kWe—
Displacement88.5 L95.3 L
ConfigurationV20V20
Cylinders2020
Rated speed1,500 / 1,800 RPM1,500 RPM
FuelNatural GasNatural Gas
CoolingLiquid-CooledLiquid-Cooled
EmissionsUnregulatedUnregulated
Dry weight——
OriginGermanyGermany
Caterpillar CG170B-20 full specs →MTU 20V4000 GS full specs →

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